Merge https://gitlab.denx.de/u-boot/custodians/u-boot-fsl-qoriq

- Bug fixes and updates on ls2088a,ls1028a, ls1046a, ls1043a, ls1012a
- lx2-watchdog support
- layerscape: pci-endpoint support, spin table relocation fixes and
  cleanups
- fsl-crypto: RNG support and bug fixes

1 files changed, 92 insertions, 19 deletions

diff --git a/drivers/crypto/fsl/jr.c b/drivers/crypto/fsl/jr.c
index e2d9216cfc7..44273c345f9 100644
--- a/drivers/crypto/fsl/jr.c
+++ b/drivers/crypto/fsl/jr.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <cpu_func.h>
+#include <linux/kernel.h>
 #include <log.h>
 #include <malloc.h>
 #include "fsl_sec.h"
@@ -19,6 +20,7 @@
 #include <asm/cache.h>
 #include <asm/fsl_pamu.h>
 #endif
+#include <dm/lists.h>
 
 #define CIRC_CNT(head, tail, size)	(((head) - (tail)) & (size - 1))
 #define CIRC_SPACE(head, tail, size)	CIRC_CNT((tail), (head) + 1, (size))
@@ -446,7 +448,52 @@ int sec_reset(void)
 	return sec_reset_idx(0);
 }
 #ifndef CONFIG_SPL_BUILD
-static int instantiate_rng(uint8_t sec_idx)
+static int deinstantiate_rng(u8 sec_idx, int state_handle_mask)
+{
+	u32 *desc;
+	int sh_idx, ret = 0;
+	int desc_size = ALIGN(sizeof(u32) * 2, ARCH_DMA_MINALIGN);
+
+	desc = memalign(ARCH_DMA_MINALIGN, desc_size);
+	if (!desc) {
+		debug("cannot allocate RNG init descriptor memory\n");
+		return -ENOMEM;
+	}
+
+	for (sh_idx = 0; sh_idx < RNG4_MAX_HANDLES; sh_idx++) {
+		/*
+		 * If the corresponding bit is set, then it means the state
+		 * handle was initialized by us, and thus it needs to be
+		 * deinitialized as well
+		 */
+
+		if (state_handle_mask & RDSTA_IF(sh_idx)) {
+			/*
+			 * Create the descriptor for deinstantating this state
+			 * handle.
+			 */
+			inline_cnstr_jobdesc_rng_deinstantiation(desc, sh_idx);
+			flush_dcache_range((unsigned long)desc,
+					   (unsigned long)desc + desc_size);
+
+			ret = run_descriptor_jr_idx(desc, sec_idx);
+			if (ret) {
+				printf("SEC%u:  RNG4 SH%d deinstantiation failed with error 0x%x\n",
+				       sec_idx, sh_idx, ret);
+				ret = -EIO;
+				break;
+			}
+
+			printf("SEC%u:  Deinstantiated RNG4 SH%d\n",
+			       sec_idx, sh_idx);
+		}
+	}
+
+	free(desc);
+	return ret;
+}
+
+static int instantiate_rng(u8 sec_idx, int gen_sk)
 {
 	u32 *desc;
 	u32 rdsta_val;
@@ -466,11 +513,20 @@ static int instantiate_rng(uint8_t sec_idx)
 		 * If the corresponding bit is set, this state handle
 		 * was initialized by somebody else, so it's left alone.
 		 */
-		rdsta_val = sec_in32(&rng->rdsta) & RNG_STATE_HANDLE_MASK;
-		if (rdsta_val & (1 << sh_idx))
-			continue;
+		rdsta_val = sec_in32(&rng->rdsta);
+		if (rdsta_val & (RDSTA_IF(sh_idx))) {
+			if (rdsta_val & RDSTA_PR(sh_idx))
+				continue;
+
+			printf("SEC%u:  RNG4 SH%d was instantiated w/o prediction resistance. Tearing it down\n",
+			       sec_idx, sh_idx);
 
-		inline_cnstr_jobdesc_rng_instantiation(desc, sh_idx);
+			ret = deinstantiate_rng(sec_idx, RDSTA_IF(sh_idx));
+			if (ret)
+				break;
+		}
+
+		inline_cnstr_jobdesc_rng_instantiation(desc, sh_idx, gen_sk);
 		size = roundup(sizeof(uint32_t) * 6, ARCH_DMA_MINALIGN);
 		flush_dcache_range((unsigned long)desc,
 				   (unsigned long)desc + size);
@@ -478,11 +534,11 @@ static int instantiate_rng(uint8_t sec_idx)
 		ret = run_descriptor_jr_idx(desc, sec_idx);
 
 		if (ret)
-			printf("RNG: Instantiation failed with error 0x%x\n",
-			       ret);
+			printf("SEC%u:  RNG4 SH%d instantiation failed with error 0x%x\n",
+			       sec_idx, sh_idx, ret);
 
-		rdsta_val = sec_in32(&rng->rdsta) & RNG_STATE_HANDLE_MASK;
-		if (!(rdsta_val & (1 << sh_idx))) {
+		rdsta_val = sec_in32(&rng->rdsta);
+		if (!(rdsta_val & RDSTA_IF(sh_idx))) {
 			free(desc);
 			return -1;
 		}
@@ -498,9 +554,17 @@ static int instantiate_rng(uint8_t sec_idx)
 static u8 get_rng_vid(uint8_t sec_idx)
 {
 	ccsr_sec_t *sec = (void *)SEC_ADDR(sec_idx);
-	u32 cha_vid = sec_in32(&sec->chavid_ls);
+	u8 vid;
+
+	if (caam_get_era() < 10) {
+		vid = (sec_in32(&sec->chavid_ls) & SEC_CHAVID_RNG_LS_MASK)
+		       >> SEC_CHAVID_LS_RNG_SHIFT;
+	} else {
+		vid = (sec_in32(&sec->vreg.rng) & CHA_VER_VID_MASK)
+		       >> CHA_VER_VID_SHIFT;
+	}
 
-	return (cha_vid & SEC_CHAVID_RNG_LS_MASK) >> SEC_CHAVID_LS_RNG_SHIFT;
+	return vid;
 }
 
 /*
@@ -538,14 +602,15 @@ static void kick_trng(int ent_delay, uint8_t sec_idx)
 
 static int rng_init(uint8_t sec_idx)
 {
-	int ret, ent_delay = RTSDCTL_ENT_DLY_MIN;
+	int ret, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
 	ccsr_sec_t __iomem *sec = (ccsr_sec_t __iomem *)SEC_ADDR(sec_idx);
 	struct rng4tst __iomem *rng =
 			(struct rng4tst __iomem *)&sec->rng;
 	u32 inst_handles;
 
+	gen_sk = !(sec_in32(&rng->rdsta) & RDSTA_SKVN);
 	do {
-		inst_handles = sec_in32(&rng->rdsta) & RNG_STATE_HANDLE_MASK;
+		inst_handles = sec_in32(&rng->rdsta) & RDSTA_MASK;
 
 		/*
 		 * If either of the SH's were instantiated by somebody else
@@ -566,10 +631,10 @@ static int rng_init(uint8_t sec_idx)
 		 * interval, leading to a sucessful initialization of
 		 * the RNG.
 		 */
-		ret = instantiate_rng(sec_idx);
+		ret = instantiate_rng(sec_idx, gen_sk);
 	} while ((ret == -1) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
 	if (ret) {
-		printf("RNG: Failed to instantiate RNG\n");
+		printf("SEC%u:  Failed to instantiate RNG\n", sec_idx);
 		return ret;
 	}
 
@@ -592,7 +657,7 @@ int sec_init_idx(uint8_t sec_idx)
 #endif
 
 	if (!(sec_idx < CONFIG_SYS_FSL_MAX_NUM_OF_SEC)) {
-		printf("SEC initialization failed\n");
+		printf("SEC%u:  initialization failed\n", sec_idx);
 		return -1;
 	}
 
@@ -640,7 +705,7 @@ int sec_init_idx(uint8_t sec_idx)
 
 	ret = jr_init(sec_idx);
 	if (ret < 0) {
-		printf("SEC initialization failed\n");
+		printf("SEC%u:  initialization failed\n", sec_idx);
 		return -1;
 	}
 
@@ -654,10 +719,18 @@ int sec_init_idx(uint8_t sec_idx)
 #ifndef CONFIG_SPL_BUILD
 	if (get_rng_vid(sec_idx) >= 4) {
 		if (rng_init(sec_idx) < 0) {
-			printf("SEC%u: RNG instantiation failed\n", sec_idx);
+			printf("SEC%u:  RNG instantiation failed\n", sec_idx);
 			return -1;
 		}
-		printf("SEC%u: RNG instantiated\n", sec_idx);
+
+		if (IS_ENABLED(CONFIG_DM_RNG)) {
+			ret = device_bind_driver(NULL, "caam-rng", "caam-rng",
+						 NULL);
+			if (ret)
+				printf("Couldn't bind rng driver (%d)\n", ret);
+		}
+
+		printf("SEC%u:  RNG instantiated\n", sec_idx);
 	}
 #endif
 	return ret;